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Finding the Fourth Proportional to 9,135.57, 12,607.10 and 4,943.82

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Solution

The fourth proportional to 9,135.57, 12,607.10 and 4,943.82 is: 6,822.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.57 : 12,607.10 = 4,943.82 : x
  2. Step 2: Convert to fraction form
    9,135.57/12,607.10 = 4,943.82/x
  3. Step 3: Cross multiply
    9,135.57x = 12,607.10 × 4,943.82
  4. Step 4: Simplify right side
    9,135.57x = 62,327,208.40
  5. Step 5: Solve for x
    x = 62,327,208.40/9,135.57
  6. Step 6: Final answer
    x = 6,822.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.